Sparking device for explosive-engines.



J. 1). MAXWELL. SPARKING DEVICE FOR EXPLOSIVE ENGINES.

APPLICATION FILED MAR. 12, 1908.

1,120,399, r I Patented Dec. 8, 1914. I

Fig. L

'QFFICE.

JONA'IHEtN ID. MAXWELL, OF TABBYTOW'N, NEW YORK.

S IiARKING' DEVICE FOR EXPLOSW'E-EHGINES.

Specification of Letters Patent.

r tenteaneeenoia.

Application filed march 12, 1908. Serial No. 420,538.

ToaZZ whom it may concern:

Be it known that l, JONATHAN D. Max- WELL, of Tarrytown, New York, havenvented certain improvements in Sparking Devices for- Explosive-Engines,of which the following description, in connection with the accompanyingdrawings, is a specification, like letters on the drawings des gnatinglike parts.

This invention relates to sparking devices for explosive engines and isof particular utility when applied to electrical sparking devices forautomobiles, although I Wish it understood that Icontemplate the use ofmy inventionin any field for Which it may be adapted by the nature of myimprovements.

The object of my invention is to render the sparking generator quicklyand easily removable from the explosive engine, and also to permit itsreturn to operative position, Without disturbing other parts, and 1preferably construct the closure member of the crank chamber asone partwith the surfport for the sparking generator, the who and removable as aunithe frame carrying the cylinders, and

being mounted on, tary structure from, valve motion for the engine sofrom the engine.

The variousi'eatures of my invention will be illustrated and describedfully in the accompanying drawin s and specification and pointed out inthe claims.

In the drawings, Figure 1 shows, in vertical, longitudinal section,part. ct an explosive engine, with enough oi a crank chamber, itsclosure and sparking mechanism, in-thc-construction of Whichmyimprovements have been embodied, to illustrate my inventiomvand Fig.- 2isa view in perspective,

. place upon an automobile.

In the embodiment of any invention selected for illustration anddescription to enable ready and com lete understandin of. myimprovements, ,1; e part. designate by the reference numeral 1 isan93.26513071116- chanical spark, generator, which maybe of any convenientand suitable-construction, roir admit-h,electricalconductors Q-oit' ,rvich portions only are shown and ,Which ,may extend tothe sparking plugs3 (see Fig. 2) directly or through =contrclling ,mechanism at anydesired part ,of the apparatus, the sparkgenerator having anactuatingshaft mounted .in bearings a and 6 formed. re-

of the parts shown in Fig. l, in

'28, y from which spectivelyin the stationary part 7 and removable faceplate S of a casing provided for a gear or other actuating member 9,which, in the instance illnstratedfmeshes with a gear 10, fast upon acam shaft The faceplate 8 may have suitable fastening means, such as thebolts 12, to secure it in place. I

The clectro-mechanical sparking device 1, in accordance with myinvention, is mount-, ed upon, and removable as a unitary structurewith, a member 13, suitable fastening means, as the cap screw 26,-beingprovided preferably, to secure the generator upon the member '13,which serves 'as I a-closure for the crank chamber 14:, over ahand-hole, or opening 15 in the crank chamber, to the sides of which maybe bolted in usual fashioncylinders 16, provided with suitable valves17.

5T0 actuate these valves have illustrated cams 18 engaging spindles/19carried in bearingsQO, extending through, and preferably forming a partof the Walls of, a frame 21, this frame with the .valvespindles beingremovably secured ,over the upper aperture of the crank chamber 14 bysuitable fastensing means, as the bolts 22 which project through theedges of the closure 13 also, and have nuts 23 to retain the severalparts in assembledrelation, ,lt vvillthus be seen that when access tothe crank chamber is desired, the sparking generator 1 and the closure13 can be removedas a unitary structure simply by removing the nuts 23andif desired the frame 21min be removedthereafter, carrying with it thecamshaft 11,.and-

this shaft inlturn can be removed irom its bearings 2% and 25 and, thespindles 19 .from their bearings20wvheninecessary.

ll donot claim -generically as aieature of my present invention theframe 21,,removable with the cam shaft and spindles, ,as the sameformsthesubject matter of my ggipligg tion Serial No. -,3 75,5v 72, ,filsdlllhegear 10 upon the cam shaft meshes with a gear 27 est, upon thecrankshaft is derived the power torotate the cam shaft .11 .and theoperator shaft i, and it will be observed it teach of .theselshafts andtheir corresponding gears coinelaway together, and remain asso ciated,sothat they lean be; readily assembled reason, 1 the closure and thevalve frame have been removed.

Having described my invention thus fully and convenient means forcarrying the same into efiect, it will be understood that I donotlimit'myself to the specific form n paratus selected forillustration, :2 J eral otherwise than as set fort ix. read inconnection with the vcilication.

What I claim and desire 2.1) secure by Letters Patent is 1. Thecombination with an explosive engine, its crankshaft, and a casingtherefor having a removable cover-part; of a spark generator havingstationary and rotatable elements, said generator being mounted on,

and removable with, said cover part, with-.

out altering the relative position of the generator elements; and meansto permit action said crank shaft, substantially in the manner and forthe purpose set forth. Y

2. Thecombination with an explosion engine, its crank-shaft, and acasing therefor having an opening opposite said crank-shaft,

of a cam-shaft, and its bearing sup ort, said I opening bearing supportsurrounding sar casing; a 010- and being mounted upon sai sure for saidopening; a spark generator mounted on, and removable bodily with, saidclosure over said cam-shaft support; gearing connecting said cam-shaftwith, and to operate, said generator; and means to permit actuation ofsaid camshaft and said generator by said crank-shaft, said actuatingmeans being subject to splash lubrication from said crank-shaft;substantially as described.

3. The combination with an explosion engine, its crank shaft, and acasing therefor having an" aperture; of a removable valvegear-casehaving substantially strai ht Walls constituting an extension of saieasing around said aperture; a cam-shaft and cooperating valve-actuatingmembers mounted in and removable with said valve-gearcase; a closuremember mounted over said valve gear-case and aperture; anelectromechanical spark generator carried by said closure member; a gearon said valve cam shaft, connected operatively with said generator; andmeans to permit actuation of said generator by said crank shaft,substan-' tially as described. 7

at. The combination with an explosive engine, its crank shaft, and acasing therefor having an aperture to give access to said crank shaft;of a skeleton bearing-frame mounted on-said casing over said aperture,and a cam-shaft carried by, and removable with, said frame; aclosure-member mount- 4 ed removably upon, and to cover said frame andaperture; an electro-mechanical spark generator carried by and removablewith said closure member; and a series of gears upon said crank shaft,cam shaft and spark generator, intermeshing and inclosed with- .saidgear case; and

plate. v

9. The combination with a crank case, of

' cover plate,

in said casir 5. As an article of manufacture, a closure generator andframe member for a crank-shaft chamber of the class described, and aspark generator mounted thereon, said closure member havingasubstantially horizontal portion to receive and support a sparkgenerator, and having an upright gear case provided with a bearing forthe actuating shaft of said generator.

6. As an article of manufacture, a closure member for a crank shaftchamber of the class described, and a spark generator mounted thereon,said closure member having a substantially horizontal portion to receiveand' support a spark generator; an upright gear case provided with abearing for the actuating shaft of said generator, said gear case havinga removable face plate to give access to the interior of said gear casewithout removal of said closure from said chamber. 7.l"- As.an articleof manufacture, a closure for a crankshaft chamber having agenerator'seat and an upright gear case; a spark generator mounted onsaid seat and rovided with an actuating shaft extending lnto a gear onthe ortion said case; said parts structure removable chamber;substantially 'as deof said shaft within forming a unitary from saidscribed.

8. The combination with a crank case and i a crank shaft, of adetachable cover plate for the crank case, a cam shaft mounted in saiddetachable cover plate, a magneto mounted on said cover plate, and adrive- ,trainufrom said crank shaft to said cam shaft and the shaft ofsaid magneto automatically engaged and disengaged by attachment anddetachment a detachable cover plate forthe crankcase, a cam shaftmounted, in said detachable a gear upon said shaft, a drive connectionbetween said gear and the crank shaft automatically engageable anddisengageable by the attachment and detachment of said plate, anenlargement arranged adj acent one end of said plate forming a housingfor the gear upon the camshaft, a'magneto carried by 'said detachableplate, a gear upon the magneto shaft intermeshin with 'the gear upon thecam shaft and positioned within a recess in said housing, and adetachable cover for said recess.

10. In an engine, the combination with a casing,-of a gear therein, adetachable cover of said cover mama w I 1 plavbe fiierefw, a main shaftj umied in said- Signd at Tan'ytown in the county of sever lsmg bracketarm projectingkfmm Westchaster and Staca of New You-k, this said cover11m, amagnefio mounted. 011 said 26th fiayof February, 1908. v 4 abracket:amp a gear an ,sa'i cam shait for JQNATHAN 'DL MAXWELL. 5 meshmgwlth the gear within said casing, v ,YZitmesses: aigd a gearbn the,magnets" shaft meshing ALEXANDER C. PRQUDFIT,

wzth sald ggr on the cam shaft J; T; CONNELL,

